Thoughts on shipping?

Personally I never really cared when it came to other people shipping fictional or real-life people as long as they weren't toxic or harming anyone in any way, if that makes sense. I mean, for example, my friends would say that "oh idol_ and idol_ should be together since they're so compatible.." and I never minded that but when I would hear about fans being like "NO THEY ARE MEANT TO BE TOGETHER" I would get upset and even disgusted especially when they would out-right say it to the people when they are visibly uncomfortable. I also never minded if they read fanfics on them as long as they weren't minors or anything. Like what is everyone else's thoughts on shipping?